I'm having the following problem: water got into the automatic transmission of my 2000 American Explorer. I noticed it in time, and it didn't last long. I already drained the oil by removing the transmission cover and filter, but it felt like not much came out. I left

it draining for almost two days, and I washed the filter and cover. I poured in a liter of oil with the cover off until clean oil started coming out. I put a separate oil cooler in and reassembled everything. Then I added a 5-liter jug of Quaker Oats transmission fluid and started the engine. It shifts well, but my question is whether those 5 liters were enough since it doesn't have a dipstick. I should clarify that less than 5 liters came out when I drained it. I also checked the oil again, and it's no longer chocolatey like it was when there was water in it, but pinkish. Do I have to drain the oil again and put in new oil, or just top it off? What's the best thing to do? I need to know urgently because I'm leaving on a trip the day after tomorrow.